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Subcooled flow boiling of fluorocarbons
(Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1971], 1971)
A study was conducted of heat transfer and hydrodynamic behavior for subcooled flow boiling of Freon-113, one of a group of fluorocarbons suitable for use in cooling of high-power-density electronic components. Problems ...
Thermal contact resistance with non-uniform interface pressures
(Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1970], 1970)
This work considers the effect of roughness and waviness on interfacial pressure distributions and interfacial contact resistance. It is shown that for moderate roughness the contour area could be substantially different ...
Transition from film boiling to nucleate boiling in forced convection vertical flow
(Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1972], 1972)
The mechanism of collapse of forced cnnvection annular vertical flow film boiling, with liquid core, is investigated using liquid nitrogen at low pressures. The report includes the effect of heat flux from the buss bar. ...
The effects of surface conditions on boiling characteristics
(Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1972], 1972)
A unified model relating surface variables to the nucleate pool boiling characteristics was developed. A simple vapor trapping mechanism was postulated and a geometrical model constructed for idealized conical cavities ...
Forced-convection condensation inside tubes
(Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1971], 1971)
High vapor velocity condensation inside a tube was studied analytically. The von Karman universal velocity distribution was applied to the condensate flow, pressure drops were calculated using the Lockhart- Martinelli ...
Areas of contact and pressure distribution in bolted joints
(Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1970], 1970)
When two plates are bolted (or riveted) together these will be in contact in the immediate vicinity of the bolt heads and separated beyond it. The pressure distribution and size of the contact zone is of considerable ...
Investigation of heat transfer augmentation through use of internally finned and roughened tubes : final summary report
(Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1970], 1970)
This report summarizes a three-year program concerned with obtaining basic design information for tubes having a random roughness on the inside wall (RID) and tubing having continuous internal fins (Forge Fin). Test apparatus ...
Post critical heat transfer to flowing liquid in a vertical tube
(Cambridge, Mass. : Heat Transfer Laboratory, Department of Mechanical Engineering, Massachusetts Institute of Technology, 1974, 1974)
Refrigerant forced-convection condensation inside horizontal tubes
(Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1970], 1970)
High vapor velocity condensation inside a tube was studied theoretically. The heat transfer coefficients were calculated by the momentum and heat transfer analogy. The Von Karman universal velocity distribution was applied ...
Boiling and condensation in a liquid-filled enclosure
(Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1971], 1971)
A combined experimental and analytical investigation of boiling and condensation in a liquid-filled enclosure, with water and Freon- 113 as the working fluids, is described. The operating characteristics of a boiling system, ...